MicroLogix 1500 Programmable Controllers Fully programmable from the SLC processor, these resolver interface modules offer position resolutions of up to 8,192 counts per turn for single turn applications or 4,096 counts per turn over a maximum of 180 turns for multi-turn applications. The MicroLogix 1500 controller utilizes Rockwell Software RSLogix. 500 programming software and shares a common instruction set with the MicroLogix 1000, MicroLogix 1200 and SLC families of controllers. New features are. 1 A typical user program contains bit, timer, counter, math and file instructions. 1764 - 24.